Amazon Redshift now supports multi-data warehouse writes through data sharing in public preview. You can start writing to Redshift databases from multiple Redshift data warehouses in just a few clicks. The written data is available to all warehouses as soon as it is committed. This allows teams to flexibly scale compute by adding warehouses of different types and sizes based on their write workloads’ price-performance needs, isolate compute to more easily meet SLAs, and easily and securely collaborate with other teams.
Source:: Amazon AWS